Drabescus bilaminatus, Yu, Zhou, Webb, Mick, Dai, Ren-huai & Yang, Mao-fa, 2019

Yu, Zhou, Webb, Mick, Dai, Ren-huai & Yang, Mao-fa, 2019, Three new species in the leafhopper tribe Drabescini (Hemiptera, Cicadellidae, Deltocephalinae) from southern China, ZooKeys 846, pp. 43-53 : 43

Drabescus bilaminatus sp. n. Figs 1-9

Diagnosis.

Overall colour yellowish brown with numerous dark spots on the forewings. Subgenital plate wrinkled at apex. Aedeagal shaft with large flange on each side of ventral surface extending sub-basally to near apex.

Description.

Vertex approximately 1.3x as long medially than next to eyes. Ocelli separated by ca. 4 x own diameter from adjacent eye. Hind femur with apical setae 2+2+1.

Male genitalia. Pygofer side nearly quadrilateral with long stout serrated ventral process directed dorsally; without macrosetae (Fig. 4). Valve triangular, nearly 2 x as wide as medial length. Subgenital plate elongate triangular with very short, wrinkled at apex; with short fine setae marginally on ventral surface (Fig. 5). Connective with stem short, 1/2 long as arms (Fig. 9). Style slender throughout length, without distinct lateral lobe (Fig. 6). Aedeagal shaft elongate, cylindrical, evenly curved dorsally, with large flange on each side of ventral surface extending sub-basally to near apex; dorsal surface with few fine teeth (Figs 7, 8).

Length (including tegmen). ♂, 11.6 mm.

Material examined.

Holotype: ♂, CHINA: Guangxi province, Huaping National Nature Reserve, 18.V.2012, Zhi-hua Fan leg. Paratype: 1 ♂, data same as holotype.

Remarks.

This new species is similar to D. ineffectus (Walker) but can be distinguished by its larger lateral flanges of the aedeagus, narrower style and shorter stem of the connective.

Etymology.

The new species name is an adjective derived from a combination of the Latin words bi and lamina, referring to the laminate (thin) flanges on the aedeagus.

Distribution.

China (Guangxi Province).